<P><FONT SIZE=2 FACE="Arial">The system I am using is: Tyan 3992, AMD Athlon64, Redhat enterprise version 4. LinuxBios is based on MSI ms9185. I encountered a Machine check panic. Who can interpret the below information. I think ADDR is a Mci_ADDR register, but what is TSC. Furthermore, I think Athlon64 should have 5 error-reporting banks, there is only 3 showing, maybe the serial port missed something, but what means 4 Bank, and what is the last long number? The attached is the whole log file. The system hung, what should I do next? Thank you.</FONT></P>